Method and system of carbon sequestration and carbon negative power system
An improved method and system of carbon sequestration of a pyrolysis piston engine power system is provided. The system includes a pyrolysis piston engine for generating power and exhaust gas and a water cooling and separation unit which receives the exhaust gas and cools and removes water from the exhaust gas to create C02 gas supply. The system also includes a mixing pressure vessel which receives at least a portion of the C02 gas supply from the water cooling and separation unit and mixes the C02 gas supply with oxygen to create a working fluid to be provided to the piston engine and an oxygen generator for providing oxygen to the mixing pressure vessel. The system also includes a pyrolysis interface for inputting byproducts from a pyrolysis system, wherein the pyrolysis interface comprises a pyrolysis gas interface and a pyrolysis gas/oil interface.
1. A semi-closed cycle carbon negative power system comprising:
an engine subsystem;
semi-closed-cycle (SCC) oxygen plant subsystem connectable to the engine subsystem;
an intake subsystem connectable to the SCC oxygen plant subsystem; and
a gas cleanup system (GCS) connectable to the SCC oxygen plant subsystems,
a pyrolysis subsystem connectable to the engine subsystem;
a waste-heat-to-power subsystem connectable to the pyrolysis subsystem;
an exhaust water separator subsystem connectable to the waste-heat-to-power subsystem;
an inlet hopper;
a pyrolysis reaction chamber, the pyrolysis reaction chamber comprising:
a pipe;
a heating jacket surrounding the pipe;
a separator vessel, wherein the separator vessel provides a liquid/tar product, a gaseous product, and a char product;
a screw concentric the pipe for moving material through the pipe to the separator vessel; and
a burner connectable to the heating jacket, and wherein the separator vessel is connectable to the burner and wherein the burner is designed to use liquid pyrolysis products.
2. The semi-closed carbon negative power generation system as in claim 1 wherein the gas cleanup system (GCS) comprises:
a two stage GCS molecular sieve-based dehydration and capture system operating on the Thermal Swing Absorption (TSA) beds process;
a GCS blower connectable to the two stage GCS molecular sieve-based dehydration system; and
a heat exchanger connectable to the two stage GCS molecular sieve-based dehydration system.
3. The semi-closed carbon negative power generation system as in claim 2 wherein the gas cleanup system (GCS) further comprises:
at least two Vacuum Pressure Swing Absorption (VPSA) vessels connectable to the heat exchanger;
a vacuum pump for removing captured gases from the VPSA vessels;
a buffer tank connectable to the vacuum pump;
a multi-stage compressor connectable to the buffer tank;
a storage task connectable to the multi-stage compressor; and
wherein captured gases are also used to regenerate the TSA beds.